Home / 270,306.46-405,516.93-80,781.58

Finding the Fourth Proportional to 270,306.46, 405,516.93 and 80,781.58

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Solution

The fourth proportional to 270,306.46, 405,516.93 and 80,781.58 is: 121,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,306.46 : 405,516.93 = 80,781.58 : x
  2. Step 2: Convert to fraction form
    270,306.46/405,516.93 = 80,781.58/x
  3. Step 3: Cross multiply
    270,306.46x = 405,516.93 × 80,781.58
  4. Step 4: Simplify right side
    270,306.46x = 32,758,298,322.15
  5. Step 5: Solve for x
    x = 32,758,298,322.15/270,306.46
  6. Step 6: Final answer
    x = 121,189.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.